3a-7=2a+5

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Solution for 3a-7=2a+5 equation: 



3a-7=2a+5

We move all terms to the left:

3a-7-(2a+5)=0

We get rid of parentheses

3a-2a-5-7=0

We add all the numbers together, and all the variables

a-12=0

We move all terms containing a to the left, all other terms to the right

a=12

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